According to the standard unified model [1]},
the difference between type Is and IIs are
attributed solely to orientation effects.
In this case, ignoring type Is should not significantly
change our results. However, there is growing evidence against
the unified model. For example,
[2]} and [3]}
found that type Is have the same clustering as type IIs at large scales,
but have significantly weaker clustering at small scales,
indicating that they reside in halos of similar mass but
with different satellite abundances. Thus, if type I AGNs were
included in the analysis, the difference in small-scale
clustering between AGNs and star-forming galaxies presented
above would be reduced.
